Items diagnostics

To the IO Server-provided diagnostics of items, the following two columns are added:

• The message ID
  The message ID consists of two parts:

  • A letter indicating the type of message.
    For example, P-poll, C-cyclic, B-block, and so on.

  • A message number.
    For example, order ID, block ID, event ID, and so on.

• The S7 error code
  The diagnostic information shows the message ID. For example, order ID, block ID, or event ID, and the error code description.

  The following table shows different error codes and the corresponding description:

  Letter Code	Letter Description	Error Code	Error Description
  R	Result Error	255	OK
  		1	Data hardware error
  		3	Object access denied
  		5	Data address is invalid
  		6	Data type not supported
  		7	Data type is not consistent
  		10	Data does not exist in the PLC
  L	Lib Error	120	Connection aborted
  		123	Connection cannot be established
  		23	Connection name not found
  		25	No ldb or xdb file
  		90	Firmware error
  		140	An error occurred during the installation of the SINEC driver
  		141	Internal error
  		121	Request in this connection state not executable
  		20	Invalid cref
  		130	Invalid cyclic read state
  		80	Data size too small
  		30	No order for this order ID
  		7	Invalid parameter in structure
  		122	Maximum of available requests exceeded
  		100	Type for Mini-DB call not allowed
  		101	Value for Mini-DB call not allowed
  		143	No license found
  		3	Resources exhausted
  		142	SINEC windows message server cannot be started
  		53	Object access denied
  		51	OD or attributes of object are inconsistent
  		50	Object undefined
  		31	Order ID already used
  		81	Message received, but corresponding function not called
  		11	Service not supported
  		112	VFD already used by another application
  		113	Connection already used by another application
  		150	Incorrect symbolic address
  		151	Size of symbolic address and size of buffer inconsistent
  		8	PDU size violation
  		9	Too many dll users
  		2	Incorrect CP descriptor
  		10	Wrong function for received message called
  		40	Invalid r_id on this cref
  		41	r_id already used
  		42	No r_id found
  		82	Data range or data type wrong
  		83	Invalid segment
  		160	Error in remote block receive
  		161	Error in remote block send
  		162	Data transfer cancelled by remote BSEND block
  		163	Remote block database too small
  		170	No receive block
  B	Block Error	1	Timeout for initial values
  		2	Timeout for update values
  		3	Item range exceeds block range
  E	Event Error	3	Item range exceeds add_value range
  G	General Error	1	PO/PA item not readable
  F	Fatal Error	2	Item doesn't fit in a single message and won't be advised
  T	Timeout Error	3	Timeout for initial values
  N	Connection Error	4	Received S7_ABORT_IND from the SAPI